Saint Balthild (c. 626-680) was the Anglo-Saxon slave girl who became Queen of the Franks — sold to the court of Clovis II, married him, and after his death ruled France as regent. Abolished the Christian slave trade in Francia.
Featured in Bede's Ecclesiastical History.
Balthild is a compound name. Its parts are hild — each an attested element with a recorded meaning of its own.
Balthild does not currently appear in the US Social Security Administration's top 1,000 girls' names, so we don't publish a US rank or birth count for it. That says nothing about the name's standing elsewhere in the world — only that it sits outside the ranked US data we rely on.
In Pythagorean numerology the letters of Balthild reduce to 5, The Seeker. This is a traditional interpretive system, not a factual claim about the name.